APA Citation

Spuler, A. (1910). Die Schmetterlinge Europas (Band 2).

Chicago Style Citation

Spuler, Arnold. Die Schmetterlinge Europas (Band 2). 1910.

MLA Citation

Spuler, Arnold. Die Schmetterlinge Europas (Band 2). 1910.

Warning: These citations may not always be 100% accurate.